<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
  <style>
    div{
      width: 200px;
      height: 200px;
      border:1px solid red;
      /*溢出设置:visible默认显示 hidden隐藏 scroll滚动显示*/
      overflow: scroll;
    }
    img{
      /*设置行内元素垂直对齐方式:top/middle/bottom/baseline基线对齐(默认)*/
      vertical-align: bottom;
    }
  </style>
</head>
<body>

<input type="text"><img src="../b.jpg" width="100" alt="">
<div>
  <img src="../b.jpg" alt="">
</div>
</body>
</html>